Sheet metal piling unit



March 1934- G. JANSSEN ,95

' SHEET METAL FILING UNIT Filed Nov. 27, 1931 kqiem. 11 4 5 7 13 l f I 1I III/EH 0/: g (Mal/0 JZl/ZJJ' /z Fatented Mar. 13, 1934 SHEET METALPILING' UNIT Guido Janssen, Charlottenburg', Berlin, Germany ApplicationNovember 27", 1931, Serial No. 577,415 In Germany November 27, 1930 2Claims.

'- whose longitudinal cross section or profile has the appearance ofcross bars placed at right angles to each other, so as to simulateascending and descending steps, and adapted to be superposed or tooverlap the adjacent structure of a like character so that the step-likegradations of one member fit into step-like gradations of another.

Another object of my invention is to provide such a structure withlaterally extending ribs having flanges at the ends thereof to interlockwith oppositely disposed flanges of an abutting structure of the samecharacter.

Another object is to provide such a step like structure with an elevatedridge on one of the steps for guiding the movement of a superposedstructure of the same character.

Still another object is to provide such a structure with a tongue-likeperpendicularly disposed flange depending from one of the steps.

My invention, in its preferred embodiment, consists of an angle ironpiling plate structure of ascending and descending rectangularlydisposed gradations or steps, so that the step-like grade. tions of onemember can be superposed above the members of the same character, thestep-like gradations of one member fitting into the steplike gradationsof the other member.

With the above and other objects and features in view, my invention willhereinafter be described and claimed.

Referring in detail to the drawing in which 1' have shown simple andpractical embodiments of the invention, and in which similar referencecharacters designate corresponding parts throughout the several views,

Fig. 1 is a sectional view of the embodied structure showing gradationswith inverted oppositely disposed interlocking extensions on each sideof the structure,

Figures 2 and 3 are sectional views of the structure containing anincreased number of gradations, and

Figure 4 is a plan or sectional view showing a plurality of stepelements interlocked and superposed above one another so as to effectthe appearance of a parquet flooring or a stencil.

In the specific embodiment of my invention, referring particularly toFigure 1, a web with a horizontal cross bar 1 has extensions 2 and 3jutting from its ends at right angles thereto. To one side of and atright angles to extension 2 is a tongue flange 4 dependingperpendicularly therefrom while the one side of step 3 has a flange orvertically disposed extension 5. Extending from vertical step 5 is aninterlocking unit or arm connected at right angles to step 5 consistingof extensions 6, l and 8, all set at right angles to each other, toimpart to the interlocking unit or arm the appearance of an L-shapedfigure as shown in Figure 1, with its longer extension 6 horizontallyconnected to step 5.

Extending from the vertical extension 2 is an interlocking unitsubstantially L-shaped with its longer arm 9 at right angles toextension 2. The unit has the arm 10 at right angles to 9 and thesmaller arm 11 substantially parallel to the arm 7 9 and bar 1. Thesmaller arm 11 is at right angles to arm 10. Depending from horizontalarm 9 is a tongue flange 4. Above the root of tongue flange 4 and on arm9 is a slight projection or elevation 12 adapted to serve as a guide forproperly positioning iron structures of the same type as shown in Figure1 when interlocked and superposed above each other as shown in Figure 4.

As shown by Figure 1 of the drawing, it is to be noted that the web hasinverted interlocking 30 units at opposite ends in which the respectivecomponent parts of one are parallel to the parts of the other althoughnot set in the same planes.

In Figures 2 and 3 are shown multiple ribbed an le iron profiles or Webswith the interlocking units consisting of members 6, 7, 8 on one sideand 9, 10 and 11 respectively on the other side, both units beingoppositely disposed and having the horizontal members 8 and 11 indifferent planes.

The web structures shown in Figs. 2, 3 and 4 are joined together byhorizontal bars 13 which are parallel to the bars 1. Such web structuresaccordingly may be of any desired length depending upon the width and/orlength of the structure to be supported and finally concreted orcemented. In my preferred embodiments, each web structure whethermultiple or single contains a tongue adjacent one of the interlockingmembers.

In accordance with the preferred embodiments of my invention, the webunits with their respective members are brought into interlocking andsuperposed position. Referring to Figure 4 to illustrate theinterlocking of the web structures, 10 the L-shaped interlocking unit ofone structure consisting of angularly disposed extensions 6, '1 and 8 isin engagement with the interlocking unit consisting of arms 9, 10 and 11of the adjacent web structure. In the superposition of one web 1structure upon another, the horizontal extensions 2 and 3 of onestructure rest on the horizontal bar 1 of the lower structure. Thetongue flange 4 of the upper web and extension 6 of one of theinterlocking units rest upon the horizontal extensions 2 and 3respectively of the lower web.

The elevations or guides 12 on one of the arms of the interlocking unitallow for a certain clearance and tolerance between the superposed webstructures.

The structure embodied in my invention is intended to be used especiallyfor building floors, shafts and the like without requiring much riveting or welding as heretofore. Dimensions of the individual elements ofthe structure are such that whole sections can be superposed andinterlocked as shown in Figure 4, in which the outer and inner steps areguided by the elevations or guide plates 12 to allow suificientclearance or space between each adjacently joined member, to be filledin with proper binding material so as to attain a unified structure inthe form of a single plate. Plates joined in accordance with myinvention are firmly interlocked and are adapted for use intelescopically boring the sub-surface and at the same time are ofsufiicient strength to form a preliminary shell in the earth beforesetting up temporary and auxiliary framework within the shell forbuilding up the wall structure within the tunneled portion of the shell.Furthermore, the plates, when joined and interlocked in accordance withmy invention, can be used as units for ramming the same into the earthmass. The dimensions of the individual plate structures are socalculated that the outer and inner steps are adapted to be fittedwithin larger dimension steps with the allowance of some clearancebetween each step whereby only the elevations or guide plates supportthe superposed iron structure.

. larly disposed gradations.

Advantageous and better commercial co-operation is obtained by adding tothe structure tongue shaped flanges depending from one of thehorizontally disposed gradations and/or an elevation on one of thehorizontal gradations for guiding the superpositioning of a structure ofthe same character, and in other forms, the L-shaped laterally extendingmember is added.

From the above description, taken in connection with the accompanyingdrawings, it is be-- lieved the form construction and several ad--vantages of my invention will be clear. Further-- more, it is to beunderstood that the specific embodiments herein described may be changedwithout departing from the spirit and scope of my invention.

I claim:

1. A sheet metal piling for construction work, comprising a plate havingbends along its cross section forming a plurality of units arranged inseries, the units of each series having a vertical, horizontal, andVertical arm arranged in successon and at respective right angles, theunits of one series being inverted with respect to the other series, andone vertical arm of one series being adjacent to one vertical arm of theother series, reduced horizontally projecting arms connecting theadjacent vertical arms; and an L-shaped interlocking extension projectngfrom the vertical arm of the end units, said extensions being diagonallyinverted relative to each other whereby the long arms of the extensionsare in horizontal parallel planes, and a tongue perpendicularlydepending from the long arm of one of the extensions for supporting theextension when meshed with pilings of similar character.

2. A sheet metal piling for construction work, comprising a plate havingbends along its cross section forming a plurality of units arranged inseries, the units of each series having a vertical, horizontal andvertical arm arranged in succession and at respective right angles, theunits of one series being inverted with respect to the other series, andone vertical arm of one series being adjacent to one vertical arm of theother ser'es, reduced horizontally projecting arms connecting theadjacent vertical arms; and an L-shaped interlocking extensionprojecting from the vertical arm of the end units, said extensions beingdiagonally inverted relative to each other whereby the long arms of theextensions are in horizontal parallel planes, a tongue perpend'cularlydepending from the long arm of one of the extensions for supporting theextension when meshed with pilings of similar character, and aprojection on the long horizontal arm of one of the L-shaped lockingunits and above the tongue for guiding pilings of sim lar outline whenin superimposed interlocked relation with each other, and adding pilingmaterial between said pilings.

GUIDO JANSSEN.

